Siemens SIMATIC PANEL PC 877 - Manual (Page 226)

Detailed descriptions
17.5 System resources
SIMATIC Panel PC 877
17-34
Operating instructions, Release 07/2006, A5E00877780-01
17.5.2.2 Interrupt Assignments
Interrupt Description Comment
IRQ0 System timer fixed
IRQ1 Keyboard fixed
IRQ4 Serial port COM1 2)
IRQ8 Real-time clock (RTC) fixed
IRQ9 Microsoft ACPI-Compliant System 1)
IRQ13 Numeric processor fixed
IRQ14 1. IDE channel (primary) 2)
IRQ16 Mobile Intel 915GM/GMS, 910GML
Express Chipset Family
1)
IRQ16 Intel® 82801FB/FBM USB Universal
Host Controller - 2658
1)
IRQ 16 Intel® 82801FB/FBM USB Universal
Host Controller -2659
1)
IRQ 19 Intel® 82801FB Ultra ATA Storage
Controllers - 2652
1)
IRQ 20 VIA Rhine III Fast Ethernet Adapter 2)
IRQ 22 Intel® 82801FB/FBM Universal Host
Controller - 265A
1)
IRQ 22 Intel® 82801FB/FBM Universal Host
Controller -265B
1)
IRQ 22 VIA Rhine III Fast Ethernet Adapter #2 2)
IRQ 23 Intel® 82801FB/FBM USB2 Enhanced
Host Controller - 265C
1)
PCI Interrupt Lines PCI devices interrupt assignment (PCI IRQ)
INT – A Graphics, USB A (channel 0+1), USB B (channel 2+ 3)
INT – B Slot 1
INT – C Slot 2
INT – D Serial ATA
INT – E Ethernet 1
INT – F MPI/DP
INT – G Ethernet 2, USB C (channel 4+5), USB D (channel 6 + 7)
INT - H USB 2.0
1) The on-board PCI devices require PCI interrupt channels. These interrupt channels are
sharable and plug and play compatible. This means several devices can share the same
interrupt. Interrupts are assigned automatically (exception: see section, Exclusive PCI
Hardware Interrupt).
2) These functions can be disabled in the Setup This releases allocated resources.